Glass-shear machine.



F'. w. mwume. GLASS SHEAR MACHINE. APPLICATIORFILED lUlg! 1.3, 1912.

Emma m. m,- 1915.

Fig.1.

ff/ W FiTiiTEd PATENT @FFlWE.

FRANCIS V PAWLING, OF TERRE HAUTE, INDIANA.

GLASS-SHEAR MACHINE.

lhjltlishitilll.

Specification of Letters Patent.

Patented Dec. 1d, 1915-.

T at? whom it may concern Be it known that l, FRANCIS JV. Pawmive, a. citizen of the United States. and a resident of Terre Haute, county of Vigo, and State of Indiana, have invented a certain useful G-lass-Shear Machine; and I do hereby declare that the followin is a full, clear, and

enact description thereof, reference being had to the accompanying drawings.

in the manufacture of hollow glass ware, diihculty has been. experienced in preventing a line or blister in the finished article resulting from the glass dropped into the mold and which has been chilled slightly by contact with the shears or by being allowed to string out. This chilled portion of the glass, unless properly reheated hy the rest of glass in the blank mold, will not unite with it, but will cause a line or blister in the finished article, as before mentioned.

The object of this invention, therefore, is

to provide suitable means in connection with a glass machine which will cause the proper reheating of the last portion of the glass dropped into the mold and prevent imperfections in the finished article.

The features of the invention lie in the use of a shear control by whichthat part of the gather last cut off will be directed to the center of the mold together with suitable depressing means, whereby this chilled elevation of the depressing pin shown in 1, but with the spring removed to show the means for turning said pin. Fig. 5 is a detail partially in section showing the means for lowering the depressing pin. V

in detail there is shown in the drawlngs, a portion of a glass machine having a frame carrying a pair of shears .10 and a depressing pin 11 mounted upon a fined rod 12 and adapted by means of a solenoid 13 and connecting rod 14 to oscillate said frame into the position shown, in which the shears will lie above the blank mold 15, shown by dotted lines, and the depressing pin will lie above and to one side of said blank mold and said shears.

The frame, before mentioned, consists of a rod 1; and a tubular rod 17 upon the lower ends of which heads 18 are fixed which are free to turn upon. the horizontal rod 12 and with a yoke for uniting the upper end of said rods which consists of tubular membore 1!) connected by a plate 20. There is also a secondary yoke 21 between the main yoke and the rod 12 upon which the shear operating means is mounted. The solenoid 13 is oscillatably mounted upon a pin 22 and the connecting rod 14:, forming an extension of the core of said solenoid is pivotally se cured at 23 to the right-hand rod head 18, shown in Fig. There is a switch 24: lo-

cated on said solenoid 13, as shown in Fig.

1, and when closed, current will flow through saidsolenoid, move its ari'nature toward the left and draw the frame to the position shown in Fig. 1, the left-hand movement of said frame being stopped by rollers 25 upon short arms 26 secured to the yoke heads 19 ei'igaging the press mold 15.

Upon the rear side of each of the yoke heads 19 a plate 27 is secured which extends at right angles ,from said parts and upon its upper edge, each carries a plate 28 which extend toward each other and which are spaced away from the frame and spaced apart from each other. Upon the upper side of said plates four rollers 29 are mounted upon pins 30 which extend through the plates 28 and a plate The plates 28 and 31, together with the rollers 29, form a guiding means for the rear end 32 of the bar for. controlling the movement of the shears 10. The jaws of the shears 10 are substantially L-shaped and are fulcrumed upon a pin 33, which pin extends through the bifurcated forward end 34 of the block The rear end of each of the shear members is pivotally connected to links 35 and 36 whose rear ends are pivoted upon the pair of pins ion 30. As shown in Fig. 3, the left-hand link 35 .lies upon the upper side of the plate 31,

While the right-hand link 36 lies beneath the right-hand plate 28 and thus when the jaws of the shears are closed, the left hand side lies above the right-hand side. As before mentioned, thebar 32 is guide'd by therollers "29 and when moved to the right from the position shown in Fig.*1=, the forward. yoked endBd-engaging the plates 28fand 31,;

. limits the movement thereof. There is a rod 87 extending between the plates 27 upon which abell crank 38 is mounted, the upper arm 43 of which extends into a slot 39 in the bar 32, see dotted lines in Fig. 1,-and the lower arm is pivotally connected to the armature 40 of a solenoid 41 which is secured I to'itheyoke 21. When said solenoid is actuated solenoid, a knife switch 44 is located upon the bar 16 and the freeend of said switch ispivotally connected with one end 45 of a bellcrank fulcrumed upon the rod 16, and the other end'46 ofsaid bell crank is pivotally secured-t0 a rod 47 which extends upward ;and parallel with said rod 16, beingguided by means of guides 48 and 49 which are secured to the rod- 16 The upper end.

-. of said rod 47 is bent at a right angle and extendsln a. horizontal position parallel with an arm 50 supporting the depressing pin 11,

,. =.;.-.l1ereafte1 described. There is a collar 51 secured tothe rod near the guide 48 and a spring 52 lies between said collar and said guide andnormally keeps the bell crank arm 46 elevated and the switch 44 in an open I it) position.- The switch 44 controls the flow of current to the solenoid 41.

Within the hollow frame rod 17 a rod 53 is supported by a spring 54 and near the upper end 'of said rod the arm 50, before mentioned, is secured, the outer end of said arm being bifurcated with the depressing pin extending loosely through the ends thereof. The pin 11 has a head 55 upon its upper end and between the forked ends of the arm 50a collar 56 is secured and a spring 57 surrounding the rod and bearing against the upper end 58 of said arm 50 and said collar 56, tends to keep the pin in the position shown in Fig. 1. A spiral groove 59 is out in the pin 11 and a pinGO in the upper end 58 of the arm 50 extends into said slot for the purpose of turning said pin 11 as hereafta' described. Normally the arm 50 lies at right angles to the yoke plate 20. Near the upper end, a groove is cut in the tube 1'? and a pin 66 in the rod 53 extends into said groove. The lower part of said groove is vertical but the upper part extencs about the tube a short distance and advances toward the left, such that when the rod is depressed, the arm 50 and the depressing pin 11 will be moved toward the right from the position shown in Fig. 2, and when said rod 53 is depressed suiiiciently, the pin 11 will enter the blank mold l5. l lear the l'owerend of the rod if? m: upon-the s side of the frame there is a vertical slot (31. through whi h extends the bent upper end 62 of the armature of a solenoid (325 into operative engagement with the rod 53. There is awknife switch 64 located adjacent said solenoid.

The operation of my invention is as follows: The workman having gathered a suitable quantity of glass on his punty, closes the switch 24 which moves the frame to the upright position shown in Fig. l, and then after working the glass until it is in suit.- able condition, he allows it to drop into the blank mold 15 and when a suitable quantity has fallen into said mold, he allows his punty to rest upon the bent' downward end of the rod 47 and depress the same. This will close. the switch 44 controlling the solenoid 41 and the shears 10 would be operated and the glass sheared off. The operation of the shears is such that the fulcrum pin 33 moving to the rear, the last tip of glass cut off .will fall into the blank mold 15. The workman then raises his punty, whcreupon the spring will cause the opening of the switch 44 and the shears will move back .to their, open position due to the weight of the parts. The workman then closes the switch (34 and current passing to the solcnoid ($3, willpull down on the rod 5; which will depress the arm 50, but in doing so the pin (36 traveling in the spiral groove (35, will turn the arm to the right a sullicient amount that by the time the depressing pin 11 engages the upper surface of the glass within the press mold 15., said pin will have reached the center of the mold andfurther depression of the rod will cause the pin ll to press beneath the surface of the glass of the last tip to be cut oil and which was slightly chilled. Thus this last tip will be reheated and will unite with the rest of the glass. 'lhedownward movement of the pin 11 will be resisted slightly by the glass with in the mold and the pin will move upward through the bifurcated ends of the arm 50 and will be twist-ed a slight amount due to the action of the pin (30 in the spiral groove 59. The switch 64 now being opened, the spring 54 will raise the rod 53 and the pin 11 will be lifted out of the glass, but in doing so it will be turned again under the action of the. pin (30 and groove 5:) which will tend to release the glass from adhesion with the lower end of the pin and prevent its being drawn upward to form' a line or blister. Further upward movement of the rod 5?) will cause the arm 50 to move back to the position shown in Fig. :5, after which the switch fall toward"tl'iejwight out of the road of the blank mold which then may be cared for in the usual manner.

"d liilei mac wings there iened and the frame will g the shear nn'jluntcrl upon an oscillatory frame, yet I do not wish to limit myself to this particular construction, for my shear may be used with equal facilitv upon glass machines of the, rotary type iii which the molds are mounted upon a movable table which can be revolved beneath the shears.

I claim as my invention:

1. In a glass machine, the combination with a press mold, of a pin appreciably smaller than the mouth of the mold. and means for inserting the pin into the mouth of the mold after the gather of glass has entered the mold and limiting the entering movement of the pin so that it will merely submerge the chilled upper point of the gather of glass into the body of glass without pressing the glass.-

2. In a glass machine. the combination with a press mold, of'a pin adapted to enter the mouth of the mold, means for inserting the pin into the mouth of the mold after a gather of glass has entered the mold and limiting the entering movement of the pin so that it will merely submerge the chilled upper point of the gather of glass into the body of glass without pressing the glass. and means for-causing the pin to turn as it approaches the gather of glass in the mold.

3. In a glass machine, the combination with a press mold, of a pin adapted to enter the mouth of the mold and having a spiral groove in it, a vertically movable member having bifurcated arms in which said pin is mounted so as to be vertically movable. a pin in one of said'arms projecting loosely into the groove of the first-mentioned pin.

a spring for yieldingly resisting the upward movement of the pin, and means on saidpin for limiting the downward movement of the pin in said mounting, substantiallyas set forth.

4. In a glass machine, the combination with a mold, a platform mounted upon the frame of the machine. a pair of shear jaws, a link for each jaw pivoted at one end on said platform and with the other end pivotally connected with said shear jaw, means connected with said jaws between said link connections and the cutting edges for opening andclosing said shear jaws. means for operating said shear operating means, and

means for oscillating said frame whereby said shear will be moved into and away from a position above said mold.

5. In a glass machine. the combination with a mold, ofa pivotally mounted frame,

a platform mounted thereon, a pair ofshear jaws, a link for each jawpivoted at one end on said platform and wlth the other end pivotally connected with said I shear jaw. means connected wlth said aws between sald link connections and the cutting edges for opening and closing's'aid shear jaws, a lever fulcnuniedxon said frame and. hav1ng one endoperalilysoonnected to said aw conne tion. electrically controlled means in connection with the other end of said lever for operating said shear, and means for oscillating said frame whereby said shear will be moved into and away from a position above said mold.

6. In a glass machine, the combination with a mold. of an oscillatory frame, a shear supported thereby and adapted when said frame is in a vertical position to project over said mold, a rod carried by said frame, an arm on said rod, a rod yieldingly carried by the free end of said arm, said arm being adapted to lie above and to one side of said mold when said frame is elevated, and means in connection with said frame carried rod for turning the sameas said rod is depressedwhereby said arm carried rod will enter said mold and depress a portion of the glass within said mold beneath the surface thereof.

7. In a glass machine, the combination with a mold. of an oscillatory frame, a shear supported thereby and adapted when said frame is in a vertical position to project over said mold, a rod carried by said f 'ame, an arm secured upon the outer end of said rod. a yieldingly supported rod upon the outer end of said arm and extending parallel with said frame carried rod, said arm being adapted to lie above and to one side of said mold when said frame is elevated, means on said frame in engagement with said'frame carried rod whereby said rod will be turned and said arm carried rod will be moved into position above said mold as said frame carried rod is turned and caused with the further, depression of said frame carried rod to depress a portion of the glass beneath the surface of the rear of the glass in said mold, and means for turning said rod as it enters and leaves the glass in the mold.

8. In a glass machine, the combination with a mold, of a platform mounted above said mold, a pair of l shaped shear jaws, a link for each aw pivoted at one end on said platform and with the other end pivotally connected with said shear jaw, means connected with said aws' between said lin'l: connections and the cutting edges for opening and closing said shear jaws, a lever fulcrumed on said frame and having one end operably connected to said jaw connection, and electrically controlled means'in connection with the other end of said-lever f01.'0p-. crating said shear.

so f

9.. In a glass machine, thecombinationh with a mold, of a platform mounted above said mold, a pair of. L-shaped shear jaws, a' link for each jaw pivoted at one endof said platform and with the other end pivot-ally connected-with the outer end of the shear jaws, reciprocatory means connected with said jaws between said link connections and th settin e g s r penin closing said shear jaws, means for guiding said re- In Witness whereof, Ihave hereunto aflixed 'clprocatory means, a lever fulcrumed adJamy signature in the presence of the witnesses cent sald platform and havlng one end opherein named.

erably connected with said reciprocatory FRANCIS W. PAWLING. 5 means, and electrically controlled means in Witnesses:

connection with the other end of said lever J. H. VVELLS,

operating said shear. O. M. MCLAUGHLIN. 

